I may depart you may depart he may depart we may depart you may depart they may depart
V-ing form
I may be departing you may be departing he may be departing we may be departing you may be departing they may be departing
Perfect
I may have departed you may have departed he may have departed we may have departed you may have departed they may have departed
V-ing perfect
I may have been departing you may have been departing he may have been departing we may have been departing you may have been departing they may have been departing
Negation
Simple form
I mayn't depart you mayn't depart he mayn't depart we mayn't depart you mayn't depart they mayn't depart
V-ing form
I mayn't be departing you mayn't be departing he mayn't be departing we mayn't be departing you mayn't be departing they mayn't be departing
Perfect
I mayn't have departed you mayn't have departed he mayn't have departed we mayn't have departed you mayn't have departed they mayn't have departed
V-ing perfect
I mayn't have been departing you mayn't have been departing he mayn't have been departing we mayn't have been departing you mayn't have been departing they mayn't have been departing
Interrogative form
Simple form
may I depart? may you depart? may he depart? may we depart? may you depart? may they depart?
V-ing form
may I be departing? may you be departing? may he be departing? may we be departing? may you be departing? may they be departing?
Perfect
may I have departed? may you have departed? may he have departed? may we have departed? may you have departed? may they have departed?
V-ing perfect
may I have been departing? may you have been departing? may he have been departing? may we have been departing? may you have been departing? may they have been departing?
Interro-negative form
Simple form
mayn't I depart? mayn't you depart? mayn't he depart? mayn't we depart? mayn't you depart? mayn't they depart?
V-ing form
mayn't I be departing? mayn't you be departing? mayn't he be departing? mayn't we be departing? mayn't you be departing? mayn't they be departing?
Perfect
mayn't I have departed? mayn't you have departed? mayn't he have departed? mayn't we have departed? mayn't you have departed? mayn't they have departed?
V-ing perfect
mayn't I have been departing? mayn't you have been departing? mayn't he have been departing? mayn't we have been departing? mayn't you have been departing? mayn't they have been departing?